diff options
| author | Nayna Jain | 2017-01-23 08:26:27 +0100 |
|---|---|---|
| committer | Jarkko Sakkinen | 2017-02-03 21:03:14 +0100 |
| commit | 4d23cc323cdbee1cbcd8a7f059fff9ef2b0c473d (patch) | |
| tree | 413761dcb85122f7929bd4560bf4d4e272f91769 /drivers/char/tpm/tpm_acpi.c | |
| parent | tpm: enhance read_log_of() to support Physical TPM event log (diff) | |
| download | kernel-qcow2-linux-4d23cc323cdbee1cbcd8a7f059fff9ef2b0c473d.tar.gz kernel-qcow2-linux-4d23cc323cdbee1cbcd8a7f059fff9ef2b0c473d.tar.xz kernel-qcow2-linux-4d23cc323cdbee1cbcd8a7f059fff9ef2b0c473d.zip | |
tpm: add securityfs support for TPM 2.0 firmware event log
Unlike the device driver support for TPM 1.2, the TPM 2.0 does
not support the securityfs pseudo files for displaying the
firmware event log.
This patch enables support for providing the TPM 2.0 event log in
binary form. TPM 2.0 event log supports a crypto agile format that
records multiple digests, which is different from TPM 1.2. This
patch enables the tpm_bios_log_setup for TPM 2.0 and adds the
event log parser which understand the TPM 2.0 crypto agile format.
Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Kenneth Goldman <kgold@linux.vnet.ibm.com>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm/tpm_acpi.c')
| -rw-r--r-- | drivers/char/tpm/tpm_acpi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c index b7718c95fd0b..169edf3ce86d 100644 --- a/drivers/char/tpm/tpm_acpi.c +++ b/drivers/char/tpm/tpm_acpi.c @@ -54,6 +54,9 @@ int tpm_read_log_acpi(struct tpm_chip *chip) u64 len, start; struct tpm_bios_log *log; + if (chip->flags & TPM_CHIP_FLAG_TPM2) + return -ENODEV; + log = &chip->log; /* Unfortuntely ACPI does not associate the event log with a specific |